Nudzejma — Full-Stack Web Developer

Software developer, Virgin Pulse

01/03/2022 – Current 
Primarily working as a full-stack developer on micro-services based on Java/Kotlin language.
In this role my main focus was on:

• Getting a better understanding of these languages by learning new things and actively doing PR reviews.
• Diving more into back-end technologies and started working with Lombok and SQL H2O migrations.
• Getting familiar with AWS (Amazon Web Services) (mostly: IAM with SG, SNS, SQS, EC2, ElasticSearch, S3) and Terraform.
• Understanding and tuning existing CI/CD, adding GitLab jobs (pipeline with new checks) and implemented SonarQube integration.
• Getting familiar with Kafka and Kafka Streams. Using an ES sink connector via Kafka Streams.

One of the challenges that I encountered in this role:

• Did several ES (ElasticSearch) seminars and courses to gain knowledge and improve our ES size/capacity, shards, nodes, ES querying, and Indices.
• I managed notification transport (SNS and SQS in AWS) by creating infrastructure resources in Terraform. With notification transport, I implemented a Java code that enabled uploading JSON files into the S3 bucket in AWS.
• JSON files were filled and chunked, with data pulled from ES.

Software developerб Virgin Pulse

01/11/2021 – 01/03/2022 
During this position, I was getting familiar with micro-service architecture in depth.
As an full-stack developer I worked on:

• MVCs and MVPs in Java/Kotlin on the back-end and Angular on the front-end.
• Using JPA, SpringBoot, with Java/Kotlin services.
• Getting more familiar with Apache Casandra and PostgreSql databases.
• Doing PR reviews.
• Deploying code on all of the environments via TeamCity, GitLab CI/CD pipeline and Harness.
• Contributed to micro-service with AWS ElasticSearch (ES) sync and eventually I become the only person to take care of the micro-service and its function.
• Getting familiar with ML and AI purposes and coding in Python with several algorithms and AI methodologies.
• Started working with Amazon Web Services.
• Observability with New Relic and Kibana, to deep dive and find root cause related to micro-services.

In this position, I was a mentor to 2-3 new persons on the team. OnBoarding and pair-programming with them. Wrote a few technical/setup articles. I become a supporter person for the company's Bootcamp. Also was the company contact person for Docker related issues, and local setup.

Associate Software developerб Virgin Pulse

01/08/2020 – 01/11/2021
As an Associate Software developer, I learned about business logic of the Company and completed in-house developer bootcamp program.
In this bootcamp program I had:

• Took several courses in Java, and worked on automation testing and unit testing in Java and Kotlin.
• Worked with Appium and Cucumber.
• Learned more about OOP and its fundamentals.
• Getting familiar with Agile and Scrum principles.
• Coded in Android studio with Kotlin and also coded in Swift for the IOS applications.
• I coded the web application backend in Kotlin and Java, combined with BitBucket. I had to do Database migrations with Apache Cassandra and PostgreSQL.
• I did a code inspection via TeamCity.
• Code covered with Integration and Unit tests in both Java and Kotlin.
• Getting familiar with Insomnia and Postman (API platforms).
• I did frontend coding of a Web applications with Angular, SCSS, Bootstrap, and HTML.